Patent · US Active

System, method, and product for selecting timing information based on subcarrier spacing

US11265837B2 · kind B2 · utility

2Cited by

1References

18Claims

0Family size

Assignee

Apple Inc. · US

Inventors

Jie Cui · San Jose, US
Yang Tang · Pleasanton, US
Rui Huang · Beijing, CN
Yuan Zhu · Beijing, CN

Key dates

Filing date	Mar 14, 2018
Grant date	Mar 1, 2022
Priority date	—
Expiry date	Mar 14, 2038

Classification

Technology area (CPC H)Electricity
CPC primaryH04W56/0005
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

User equipment performs autonomous time adjustment that includes selecting a Timing Error Limit (i.e. Te_NR) and Maximum Autonomous Time Adjustment Step (i.e. Tq_NR) based on bandwidth (BW) and subcarrier spacing (SCS). In one embodiment, given a certain downlink BW, if the SCS=x(kHz) and the Te_NR of this SCS is N, then the Te_NR of SCS=x/2(kHz) is 2*N. Given a certain downlink BW, if the SCS=x(kHz) and the Te_NR of this SCS is N, then the Te_NR of SCS=2*x(kHz) is N/2. For example, given BW=10 MHz, if the Te_NR of SCS=30kHz is n*Ts_NR (TS_NR is the basic timing unit for NR system), then the Te_NR of SCS=60 kHz is N/2*Ts_NR, and the Te_NR of SCS=15 kHz is 2*N*Ts_NR.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.